Slice for paper-making machines.



H. G. VANORNUIVI. SLICE FOR PAPER MAKING MACHINES.

APPLICATION FILED .IULVY 25. `1917..

Patentd Apr. 2, 1918.

2 SHEETS-SHEETI H. G. VAN RNUWI. SLICE FOR PAPER MAKING MACHINES.

APPLICATION HLED JULY25| 1911- Patented Apr. 2, 1918.

? SHEETSSHEET 2 To 'alliohoilt'it may concern.' i

Gr, "VAN OR-` Vissn weisse;

Be it`lnof-vn that l, Tienes NUM, a citizen oi Ahe United States, residingat'Picreelield, in the county-of St. Laivrence, Stat-e oi New York, have invented certain new end usefulv Improvements in Slices 'forPapcrfh/lalring Machines; and I do `hereby declarey the followlneito be a ull,

inachines, and has perticul'arfreference to improvements in .shoes for Fourdrinier nia- -shines.

The' 'object :ofthe invention .is to provide.'

an improved forni offsliee in peper making machines hyv .Ineens "of which the distance between thenpron Which'delivers the lpulp or stoel: toithe Wire'fabric of a Fourdrinier machine may he varied in proportion tothe made light Weight 'paper .ton a' heavyv Weight edjustinent, andwiceversa. .Theinvention .is elsovaluehlejin ohviating the necessity` vof supplying WaterV to the stock as is 'often distance between the lower edgeof theslice,

as the letter distance 'is varied inmahing adjustments for" papersv of. different character, i m

In all those peper making machines which are .lniowngto ine,- the slice has consisted merely o trensver'seplate which is Verticallj7 adjustable between the deckel rails by r Ineens/of adjusting screws which niust be vmamiallj set; There hes, thereiiore,` been noA provision made for varyingfth'e longitudinal position as Well -as the vertical position of the slice plate'. I p

By reason of theiniproved `eonstiuction ci" in'y invention, I ein enabled' tomahe e more perfectl adjustment of' the machine. ior malt-- ing pepersof all grades, that is, in changingjthe machine from tlie`=pos1t`1on Where it the case `when the stockrufns too free,

thereby' `causing; hrt-rainsv in the sheet 'from liunps'nfhichclogthe'heed hoi;- end ere as- `z-iociated"'therezrein ,es kthe Water is added'.

Thughy reason of my improved mechanism,

'finste'adfof Vvarying the quantity 'of VWater 4'Which passes outwith the 'etoclk, l vary the rapidity with which thev 'wateris drained froinjthe stock, 4in, order to Vmfercoine the extrenies'of too sloivvWor toofree stock. More particularly,- "I hev'elprovided eslice '.wh'ich is movable toward and alwayfrom the j? Specification of Letters Patent.

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lipplieetion fileduly 25, 131.7. Serial llo. lli?.

slice longitudinally with respect to 't ie foi- Ward or feeding end oi the apron, in proportion to' the veiying' adjustment of the slice,

I, make it possible to maint-ein depth of the pond substantially 4constant with a constant vifeed of the Water through the head box.

l/Vith' the above objects in. View, and such others relating to the deteiis of construction,

:is may hereinafter appear, my inventionwill now he fully set forth and described, reference being had to' the accompanying drawings. y

inl the drawings Figurel is a plan View ofthe stock feedingr end of the machine,

Fig. 2 is e side elevation thereof,

3 is a longitudinal section therethrough.

Fig. al is a section on line i-1i of Fig.

iiig. 5 is an enlarged elevation of a pint of the adjusting mechanism, and

Fig. G is e detail of the apron construction. Referring' more particularlyl to the drawings, l represents the ton of the freine lof a .Fourdiinier paper-making machine ,over Which the Fourdrinicr Wire 2 is operated. The'usual decliei 'frame 8 carries the pulleys 4i over which the deckel straps at run, lthe sides of the 'frame 3 heilig;` connected hy means of the shafts 6 through whose instru- The pulp is fed to the machine over the f apron 9 from' Whose edges the sidehoerds i@ rise, the apron being mounted upon ai apron board ll.

' A slice l2 is suspended between the deckel frame 3, and is vertically adjusted by means ofthe adjusting screws 1.3. Furthermore, the vslice 12 is formed il. Axtensihle sections .ile

which permit the slice to be accommodated lreceive the threaded shafts 18.

`sidesof the pond at all times. maclnn'es may be used for the manufacture to the various transverse adjustments of the deckel frames.

The slice l2 has its ends mounted in blocks Ilflwhich are carried by the deckel frames, vertical guides 15 are formed in the blocks upon the inside of' the frames receiving said ends in slidable relation in turn, the blocks la `are longitudinally slidable in slots 1,6 formed in the deckel frames. Furthermore, the ends of the set screws or adjusting sc.` 'Vs 13 bear upon inclined faces 17 formed in the upper edge ofthe deckel frames, their ii'iclinatiou beingsuch that astheslicc -is raised upon the inclines, its increment is toward the end oi the apron l). The majorportions of the .blocks 1,4. lie outside of the frames 223 and are longitiulinally,threadedto The shafts 18 are provided upon their rear ends, with the bevel gears 18 which mesh with corresponding gears 1S) `mounted on shafts 20. The shafts 2O have bearings in the frames 3, and between the latter extend into a hollow shaft 21, 'wherein they are adjustably secured by means of the set screws 22'.v Thereby, the shafts 2O may be extended or contracted in accordance withthe adjustment of the deckel frames.

. Inthe use ofthe slice constructed inV accordance with the foregoing description, the slice is given e. two-fold ixiovement, one toward and away from the end of the apron,

and 'the other vertically.toward and away from. the screen. As the slice is moved away from the forward end of the apron it is necessary to guard the pulp in the pond fromv passing out from underthe sides of the dec-,kel frame, andV for this purpose the guards 28 are secured to the blocks 14, said guards eonsistii'ig of sheet metal plates whose height corresponds to the height ofthe side plates 10 of the apron, and which constitute extensions of the latter seas to inclosethe liourdiinier of all grades and weights of paper,according to the adjustment of the slice, the position of the slice determining the depth of the pond of pulp upon the apron preparatory to feeding it upon the screens.- Therefore, since the slice, in former constructions,

ninst be kept'ata given vertical height in order to maintain the certa-in depth of the pond, it has been necessary to add Water to the stock in order to .maintain the proper consistency of the latter. struction, liowerer, it is possible to adjust the slice in order to vary the consistency of the stock and still maintain the proper depth of the pond, and to do this without moving from side to side of the machine. Thus,

when the slice is positioned attheJ forward end of 'the apron, Lind stands at a certain previously adjusted distance aboye the Fourdrinier wire, the material will flow there-l By the new con-.

stock through the Fourdrinier wire before.

passing below the slice. However, simultaneously with the forward adjustment of theslicel itl is lowered, so as to reduce the size ofthe openingbelow the evener edge of the slice. By this meansthe depth of the pond may be maintained while the consistency of' the material which passes-'onto the Fourdrinier wire is varied. lVhen the paper fibers are short, that is when the stock is slow, it tends toholdmore water than when the fibers are long or thestock is free and in this conditionv a sufficient amount of Water does not drop below the wire as thematerial makes its way to the suction boxes so that the latter are overburdened. vTherefore, the two-fold adjustment v of the slice will permit a compensation for this purpose without the necessity of adding water to the stock in order to provide i; sufficient initial quantity to screen with before reaching the apron. In making newspapers and other 'papers of light weight, it often happens that when the stock rimsv too slow itis. necessary to cut off the water, and then later tofrce up they stock, a process which. causes lumps or masses of the pulp to 'leave the flow boxes which', crowded below the slice, causes lumps and breaks inthe paper. This disadvantage is also 'avoided bythe use of myimproved construction.

Vhat Iclaim as my invention is i 1. A slice for aper-niaking machines, comprising in 'combination with the deckel frames thereof, a slice structure adjustable vertically and horizontally with relation to the adjustment by a unitary action.

ioo

fthe deckel frames and ameans for effecting 2. A slice for paper-making machines# comprising Ain combination with the deckel fila-mes thereof, a slice structure adjustable vertically and horizontally with relation to the deckel frames, and means for accomplishing the vertical adjustment as aresult of a horizontal adjustment.'

3.111 a paper-making machine, the combination -with the deckelframes and apron thereof, of a slice simultaneously adjustable away from the apron and toward the bottom 4of the frames', and means for accomplishing one adjustment as a result of the other. 4. Inl a paper-making'machine, the coinbinationwith the deckel frames., of' a slice, blocks longitudinally 'slidable inthe deckel `fr aines, vertical guides slid'ably carrying the slice, meansifor changing tlievertical` posi 1 tion of the slice in said slidable Ways as the for moving the blocks.

5; In 'a paper-making machine, the coinbloc'ksare longitudinally moved, and means bination with the deckel frames, of a slioe,

I blocks longitudinally slidable in the deckel frames, vertical'guides slidably carrying the slice, cam surfaces formed on the deckel frames, means carried by the slice inoperative engagemeln,v with said cam surfaces, and means for. moving the blocks longitudinally, longitudinal movement of the blocks causing a relative change in the vertical position 'of the slice.

6. A slice l:tor paper vmaking machines,

` comprising in'. combination With the deckel frames thereof, -a slice structure adjustable' able away from the apron, and toward the bottom of the frame, and means for accomplishing the vertical adjustment as a result of the horizontal adjustment.

8. In a paper making machine, the combination Wit l he deckel frames, of a slice, blocks longit dinall .slidable in the deckel frames, vertical gui es slidably carrying the slice, means for changing the vertical position of the slice in said slidable Ways as the blocks are longitudinally moved, andmeans for-moving the blocks, said block moving means bein simultaneously operative on both sides o the machine.

v/In testimony whereof I affix my signature in the presence of two Witnesses.

` HARRY G. VAN ORNUM.` Witnesses: I

FRED. W. TERRIO, JAMES JARDIN. 

